dataRetrieval - Retrieval Functions for USGS and EPA Hydrology and Water Quality Data

Collection of functions to help retrieve U.S. Geological Survey and U.S. Environmental Protection Agency water quality and hydrology data from web services. Data are discovered from National Water Information System <https://waterservices.usgs.gov/> and <https://waterdata.usgs.gov/nwis>. Water quality data are obtained from the Water Quality Portal <https://www.waterqualitydata.us/>.

Last updated 17 days ago

usgs

14.03 score 263 stars 12 packages 1.8k scripts 4.1k downloads

EGRET - Exploration and Graphics for RivEr Trends

Statistics and graphics for streamflow history, water quality trends, and the statistical modeling algorithm: Weighted Regressions on Time, Discharge, and Season (WRTDS).

Last updated 2 days ago

usgswater-qualitywater-quality-data

10.87 score 87 stars 1 packages 254 scripts 599 downloads

toxEval - Exploring Biological Relevance of Environmental Chemistry Observations

Data analysis package for estimating potential biological effects from chemical concentrations in environmental samples. Included are a set of functions to analyze, visualize, and organize measured concentration data as it relates to user-selected chemical-biological interaction benchmark data such as water quality criteria. The intent of these analyses is to develop a better understanding of the potential biological relevance of environmental chemistry data. Results can be used to prioritize which chemicals at which sites may be of greatest concern. These methods are meant to be used as a screening technique to predict potential for biological influence from chemicals that ultimately need to be validated with direct biological assays. A description of the analysis can be found in Blackwell (2017) <doi:10.1021/acs.est.7b01613>.

Last updated 1 months ago

toxicitywater-quality

7.43 score 20 stars 56 scripts 262 downloads

EGRET - Exploration and Graphics for RivEr Trends

Statistics and graphics for streamflow history, water quality trends, and the statistical modeling algorithm: Weighted Regressions on Time, Discharge, and Season (WRTDS).

Last updated 2 days ago

7.03 score 1 packages 254 scripts 599 downloads

smwrQW - Tools for censored data analysis

This package provides tools for the analysis and graphing of censored data, focussing on water-quality data. It provides a uniform user interface to many different methods for the analysis.

Last updated 2 years ago

6.68 score 11 stars 1 packages 87 scripts

smwrGraphs - Graphing Functions

Functions to create high-quality graphs to support statistical methods in water resources. These graphs meet or nearly meet the publication standards of the U.S. Geological Survey.

Last updated 2 years ago

6.27 score 18 stars 1 packages 87 scripts

smwrStats - R functions to support statistical methods in water resources

Useful tools for the analysis of hydrologic data, not inlcuding censored water-quality data.

Last updated 2 years ago

6.06 score 14 stars 1 packages 78 scripts

smwrBase - Functions to import and manipulate hydrologic data

This package has data import and export functions for specialized formats used within the U.S. Geological Survey. It also contains several functions that are useful for managing or manipulating hydrologic and other data.

Last updated 2 years ago

5.79 score 12 stars 1 packages 85 scripts

EGRETci - Exploration and Graphics for RivEr Trends Confidence Intervals

Collection of functions to evaluate uncertainty of results from water quality analysis using the Weighted Regressions on Time Discharge and Season (WRTDS) method. This package is an add-on to the EGRET package that performs the WRTDS analysis. The WRTDS modeling method was initially introduced and discussed in Hirsch et al. (2010) <doi:10.1111/j.1752-1688.2010.00482.x>, and expanded in Hirsch and De Cicco (2015) <doi:10.3133/tm4A10>. The paper describing the uncertainty and confidence interval calculations is Hirsch et al. (2015) <doi:10.1016/j.envsoft.2015.07.017>.

Last updated 2 years ago

bootstrapegretusgswater-quality-trends

5.41 score 8 stars 32 scripts 317 downloads

toxEval - Exploring Biological Relevance of Environmental Chemistry Observations

Data analysis package for estimating potential biological effects from chemical concentrations in environmental samples. Included are a set of functions to analyze, visualize, and organize measured concentration data as it relates to user-selected chemical-biological interaction benchmark data such as water quality criteria. The intent of these analyses is to develop a better understanding of the potential biological relevance of environmental chemistry data. Results can be used to prioritize which chemicals at which sites may be of greatest concern. These methods are meant to be used as a screening technique to predict potential for biological influence from chemicals that ultimately need to be validated with direct biological assays. A description of the analysis can be found in Blackwell (2017) <doi:10.1021/acs.est.7b01613>.

Last updated 1 months ago

5.05 score 56 scripts 262 downloads

Rainmaker - Rainfall event processing

Rainmaker is a collection of functions used to process instantaneous rainfall data to define event rainfall depths, rainfall intensities, rainfall erosivity and antecedent rainfall values. Event definition can be determined solely within rainmaker using the instantaneous rainfall data or can be focused directly on dates and times of interest (for example, using specific water quality sampling periods).

Last updated 2 years ago

3.65 score 18 stars 8 scripts

restrend - EStimate TRENDs

Collection of functions to estimate linear or monotonic trends in hydrologic data.

Last updated 2 years ago

3.60 score 2 stars 8 scripts

EGRETci - Exploration and Graphics for RivEr Trends Confidence Intervals

Collection of functions to evaluate uncertainty of results from water quality analysis using the Weighted Regressions on Time Discharge and Season (WRTDS) method. This package is an add-on to the EGRET package that performs the WRTDS analysis. The WRTDS modeling method was initially introduced and discussed in Hirsch et al. (2010) <doi:10.1111/j.1752-1688.2010.00482.x>, and expanded in Hirsch and De Cicco (2015) <doi:10.3133/tm4A10>. The paper describing the uncertainty and confidence interval calculations is Hirsch et al. (2015) <doi:10.1016/j.envsoft.2015.07.017>.

Last updated 2 years ago

3.51 score 32 scripts 255 downloads

USGSHydroTools - Collection of functions for hydrological analysis

Collection of functions for storm volume computation (Hydrovol), time series data aggregation, baseflow determination, load computations, and spatial data visualization.

Last updated 2 years ago

3.50 score 21 stars 2 scripts

rloadest - River Load Estimation

Collection of functions to make constituent load estimations based on the LOADEST program.

Last updated 3 years ago

3.27 score 94 scripts

smwrData - Example hydrologic data to support statistical methods in water resources

Datasets as data.frames and as text files from U.S. Geological Survey publications.

Last updated 2 years ago

2.97 score 185 scripts

SampleSplitting - Assists users in loading site data and preparing splitting volumes for the lab

Uses USGS NWISWeb web services to fetch data for the user's desired USGS NWIS stations; calculates sample bottle volumes for provided storm events; and returns this data in a text output file.

Last updated 2 years ago

2.70 score 6 scripts

HASP - Hydrologic AnalySis Package

Data aggregation and plotting of USGS groundwater level data.

Last updated 4 months ago

2.56 score 18 scripts